Download - MAJOR UNDERGROUND’S WORK CENTER / FEEDER MAINTENANCE PROGRAM JOHN MLAKAR Major Underground
MAJOR UNDERGROUND’SWORK CENTER / FEEDER
MAINTENANCE PROGRAM
JOHN MLAKARMajor Underground
EXTEND EQUIPMENT LIFE
REDUCE SERVICE INTERUPTIONS
IMPROVE SYSTEM RELIABILITY
Everyone is aware that the purpose of maintenance is ?
PAY ME NOW
$
PAY ME LATER$$$$
Fram Filters
What is Your Maintenance Direction ?Pro Active (pay me now)
PlanningTrainingProject ControlTest & EvaluateDesign ControlQuality ControlMaintenance Control
Reactive (pay me later)
ScrapRebuildingExpeditingExcessive InventoryWarranty ServicesComplaint MediationProduct Recalls
Pro Active (Pay Me Now) Reactive (Pay Me Later)
3 to 5 % in additionalProject costs
12 to 20 % in additionalProject costs
TYPICAL MAINTENANCE TYPES
PREVENTIVE MAINTENANCE
PREDICITIVE MAINTANCE
SCHEDULED MAINTENANCE
EMERGENCY MAINTENANCE
Restoration of an un-failed device to arrest, reduce, or eliminate deterioration
Preventive Maintenance
Maintenance carried out at regular intervals (rigid schedule)Scheduled Maintenance
Maintenance directed by inspections, tests and condition monitoring Predictive Maintenance
Maintenance requiring immediate attention after monitoring detects an imminent failure
Emergency Maintenance
PREVENTIVE MAINTENANCE
PREDICITIVE MAINTANCE
SCHEDULED MAINTENANCE
EMERGENCY MAINTENANCE
So what most of us call our Preventive Maintenance Program is actually Scheduled - Predictive Maintenance with the occasional
Emergency Maintenanceproject encountered to
maintain balance inthe program
Major Underground Department is comprised of several thousand Customer Work Centers with even more miles of
Feeder Circuits connecting them.
Padmount
Transformer with fusing
Transformer with a manual switch
Transformer with a switch & breaker
Transformer with a pole recloser
VaultTransformers with
manual transfer
Transformers with motor switch transfer
Transformers with 2 breaker auto transfer
Transformers with 3 breaker auto transfer
The Customer Work Centers are placed into 3 groups
Network
Network Subway
Network Radial
Network 208
High-Side Spot Network
The Cable Feeders are placed into two groups
Substation Feeders
T - Structures
Manholes
Feeder Cables
Getaways / Dips
Terminal Poles
Manholes
Feeder Cables
Work Center attachments are also grouped
Vault Attachments
Ventilation Fans
Louvers
Fire Doors
Lighting
Manhole Attachments
Sump Pumps
Manhole Castings
Cable Racks
Lighting & Ventilation
Padmount Transformer
Padmount Breaker
Padmount Switch
Terminal Pole
Vault Transformer
Vault Breaker
Protective Relay Panel
Ventilation Doors & louvers
Subway Transformer
Subway Protector
Sump Pump
Cable Termination
& Accessories
Equipment is then grouped by Customer Work Center Types
Padmount
Subway
Vault
Maintenance Criteria is then established for each piece of equipment
Manufacturer maintenance recommendations
Customer Work Center priorities Hospitals, Large commercial & industrial facilities
Progressive aging of the in service products
Monitoring of in service operations
Environmental hazards Heat, Dust, Flooding, Lightning, etc.
Each piece of equipment is evaluated and assigned Maintenance criteria for input into SAP (administrative software)
Customer service arrangement Vault, Padmount, Manual, Auto or Network
Crew makeup to perform the maintenance Majority performed with 2 man crew
Man-hours required to complete the project
Frequency of maintenance Monthly, Semi-Annual, Annually
• VAULT• PADMOUNT• MANHOLE
INSPECTION
• VAULT• PADMOUNTTESTING
The basic Maintenance program of Inspections and Testing is now established
Varying frequencies of Inspection: 6mth, 1 yr, 2 yrs, 3 yrs, 5 yrs, 10 yrs
Varying frequencies of Testing: 1 yr, 2 yrs, 3 yrs, 5 yrs
CircuitSwitching
CustomerOutages
RemoteMonitoring
SPCCOil Survey
TroubleRestoration
BatteryMaintenance
MAINTENANCEPROGRAM
Outside influences provide input for change to the Major Underground Maintenance program
Remote monitoring of in service equipment provides invaluable information for evaluating maintenance controls
Monitoring also provides constant operation and load data as well as environmental temperature and water sensing which affect changes to
maintenance program.
Other influences affecting the evolution of the Maintenance Program
Replacement of older high maintenance customer protection relay panels
Other influences affecting the evolution of the Maintenance Program
Replacement of older high maintenance customer protection relay panels – With lower maintenance, higher reliability microprocessor relays
Other influences affecting the evolution of the Maintenance Program
Replacement of older high maintenance customer protection relay panels – With lower maintenance, higher reliability microprocessor relays Replacement of older high maintenance air insulated breakers
Other influences affecting the evolution of the Maintenance Program
Replacement of older high maintenance customer protection relay panels – With lower maintenance, higher reliability microprocessor relays Replacement of older high maintenance air insulated breakers – With lower maintenance, higher reliability, dead-front, solid dielectric breakers.
Other influences affecting the evolution of the Maintenance Program
Replacement of older high maintenance customer protection relay panels – With lower maintenance, higher reliability microprocessor relays Replacement of older high maintenance air insulated breakers – With lower maintenance, higher reliability, dead-front, solid dielectric breakers. Sometimes improving reliability means adding to the maintenance program – like the addition of UPS and their associated batteries.
All the data is compiled in the SAP system Service type Equipment type Inspection or test Frequency required Age Environment Influences
Resulting in a fixed priority maintenance schedule that initiates an order to be executed by field technicians
- Major Underground field technicians receive the orders via their truck docked Mobile Data system.
- The order is reviewed and executed
The field technicians execute the order - The inspection process, load / voltage, infrared, etc. or testing process is performed- Results are recorded and stored in SAP for future analysis.
Future Objectives
Make Work Center historical maintenance data accessible over Mobile Data to field technicians to assist with maintenance and also trouble analysis
Create a Dynamic Scheduling System that could incorporate remote monitoring information, field maintenance data, along with other influences to establish custom maintenance plans for all Customer Services
Objective hurdles are mostly incurred due to software restrictions
Questions ?